PERENNIAL FORAGE GRASSES 



II 



Forms of spikelets closed and opened. Fig. 1. Agrostis vulgaris; Fig. 2. Agrostis 

 exarata; Fig. 3. Sporobolus indicus; Fig. 4. An opened spikelet of Calamagrostis 

 canadensis; Fig. 5. Phleum pratense; Fig. 6. Muhlenbergia diffusa; Fig. 7. Pas- 

 palum dilatatum; Fig. 8. Paspalum laede; Fig. 9. A spikelet of Aristida purpurea; 

 Fig. 10. Setaria setosa; Fig. 11. Setaria glauca; Fig. 12. Alopecurus pratensis; 

 Fig. 13. Holcus lanatus; Fig. 14. A spikelet of Deschampsia caespitosa and one of 

 its flowers; Fig. 15. A spikelet of Poa serotina and one of its flowers; Fig. 1 6. A spike- 

 let of Bromus erectus and one of its flowers; Fig. 1 7. The staminate and pistillate spike- 

 lets of Buchloe dactyloides, the former both closed and opened. 

 (AfterVaseyi 



